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应用扫描电镜等先进方法,可以对砂岩储集层的胶结特征和孔隙类型做更细致的观察研究。本文通过实验所取得的大量电镜照片,介绍了胶结物在砂岩中的分布方式、胶结物的种类以及它们对储层的物性、电性参数的影响,还介绍了砂岩次生孔隙的五种结构类型和八个识别标志,这对于区分原生孔隙与次生孔隙,进而研究烃类的发生、运移和富集有重要意义。
The application of scanning electron microscopy and other advanced methods can be sandstone reservoir cementation characteristics and pore types do a more detailed observation and study. Based on a large number of electron micrographs obtained in the experiment, this paper introduces the distribution of cements in sandstone, the types of cements and their influence on physical properties and electrical parameters of reservoirs. Five structures of sandstone secondary pores are also introduced Type and eight identification marks, which distinguish between primary porosity and secondary porosity, and then study the occurrence of hydrocarbons, migration and enrichment of great significance.